/* $Id: mdoc_validate.c,v 1.1 2009/03/25 15:17:49 kristaps Exp $ */ /* * Copyright (c) 2008, 2009 Kristaps Dzonsons * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the * above copyright notice and this permission notice appear in all * copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include "libmdoc.h" /* FIXME: .Bl -diag can't have non-text children in HEAD. */ /* TODO: ignoring Pp (it's superfluous in some invocations). */ /* * Pre- and post-validate macros as they're parsed. Pre-validation * occurs when the macro has been detected and its arguments parsed. * Post-validation occurs when all child macros have also been parsed. * In the ELEMENT case, this is simply the parameters of the macro; in * the BLOCK case, this is the HEAD, BODY, TAIL and so on. */ #define PRE_ARGS struct mdoc *mdoc, const struct mdoc_node *n #define POST_ARGS struct mdoc *mdoc enum merr { EESCAPE, EPRINT, ENODATA, ENOPROLOGUE, ELINE, EATT, ENAME, ELISTTYPE, EDISPTYPE, EMULTIDISP, EMULTILIST, EARGREP, EBOOL, ENESTDISP }; enum mwarn { WESCAPE, WWRONGMSEC, WSECOOO, WSECREP, WBADSTAND, WNAMESECINC, WNOMULTILINE, WMULTILINE, WLINE, WNOLINE, WPROLOOO, WPROLREP, WARGVAL, WBADSEC, WBADMSEC }; typedef int (*v_pre)(PRE_ARGS); typedef int (*v_post)(POST_ARGS); struct valids { v_pre *pre; v_post *post; }; /* Utility checks. */ static int pwarn(struct mdoc *, int, int, enum mwarn); static int perr(struct mdoc *, int, int, enum merr); static int check_parent(PRE_ARGS, int, enum mdoc_type); static int check_msec(PRE_ARGS, ...); static int check_sec(PRE_ARGS, ...); static int check_stdarg(PRE_ARGS); static int check_text(struct mdoc *, int, int, const char *); static int check_argv(struct mdoc *, const struct mdoc_node *, const struct mdoc_argv *); static int check_args(struct mdoc *, const struct mdoc_node *); static int err_child_lt(struct mdoc *, const char *, int); static int warn_child_lt(struct mdoc *, const char *, int); static int err_child_gt(struct mdoc *, const char *, int); static int warn_child_gt(struct mdoc *, const char *, int); static int err_child_eq(struct mdoc *, const char *, int); static int warn_child_eq(struct mdoc *, const char *, int); static inline int count_child(struct mdoc *); static inline int warn_count(struct mdoc *, const char *, int, const char *, int); static inline int err_count(struct mdoc *, const char *, int, const char *, int); static int pre_an(PRE_ARGS); static int pre_bd(PRE_ARGS); static int pre_bl(PRE_ARGS); static int pre_cd(PRE_ARGS); static int pre_dd(PRE_ARGS); static int pre_display(PRE_ARGS); static int pre_dt(PRE_ARGS); static int pre_er(PRE_ARGS); static int pre_ex(PRE_ARGS); static int pre_fd(PRE_ARGS); static int pre_it(PRE_ARGS); static int pre_lb(PRE_ARGS); static int pre_os(PRE_ARGS); static int pre_prologue(PRE_ARGS); static int pre_rv(PRE_ARGS); static int pre_sh(PRE_ARGS); static int pre_ss(PRE_ARGS); static int herr_ge1(POST_ARGS); static int hwarn_le1(POST_ARGS); static int herr_eq0(POST_ARGS); static int eerr_eq0(POST_ARGS); static int eerr_le2(POST_ARGS); static int eerr_eq1(POST_ARGS); static int eerr_ge1(POST_ARGS); static int ewarn_eq0(POST_ARGS); static int ewarn_eq1(POST_ARGS); static int bwarn_ge1(POST_ARGS); static int hwarn_eq1(POST_ARGS); static int ewarn_ge1(POST_ARGS); static int ebool(POST_ARGS); static int post_an(POST_ARGS); static int post_args(POST_ARGS); static int post_at(POST_ARGS); static int post_bf(POST_ARGS); static int post_bl(POST_ARGS); static int post_it(POST_ARGS); static int post_nm(POST_ARGS); static int post_root(POST_ARGS); static int post_sh(POST_ARGS); static int post_sh_body(POST_ARGS); static int post_sh_head(POST_ARGS); static int post_st(POST_ARGS); #define mwarn(m, t) nwarn((m), (m)->last, (t)) #define merr(m, t) nerr((m), (m)->last, (t)) #define nwarn(m, n, t) pwarn((m), (n)->line, (n)->pos, (t)) #define nerr(m, n, t) perr((m), (n)->line, (n)->pos, (t)) static v_pre pres_an[] = { pre_an, NULL }; static v_pre pres_bd[] = { pre_display, pre_bd, NULL }; static v_pre pres_bl[] = { pre_bl, NULL }; static v_pre pres_cd[] = { pre_cd, NULL }; static v_pre pres_dd[] = { pre_prologue, pre_dd, NULL }; static v_pre pres_d1[] = { pre_display, NULL }; static v_pre pres_dt[] = { pre_prologue, pre_dt, NULL }; static v_pre pres_er[] = { pre_er, NULL }; static v_pre pres_ex[] = { pre_ex, NULL }; static v_pre pres_fd[] = { pre_fd, NULL }; static v_pre pres_it[] = { pre_it, NULL }; static v_pre pres_lb[] = { pre_lb, NULL }; static v_pre pres_os[] = { pre_prologue, pre_os, NULL }; static v_pre pres_rv[] = { pre_rv, NULL }; static v_pre pres_sh[] = { pre_sh, NULL }; static v_pre pres_ss[] = { pre_ss, NULL }; static v_post posts_bool[] = { eerr_eq1, ebool, NULL }; static v_post posts_bd[] = { herr_eq0, bwarn_ge1, NULL }; static v_post posts_text[] = { eerr_ge1, NULL }; static v_post posts_wtext[] = { ewarn_ge1, NULL }; static v_post posts_notext[] = { eerr_eq0, NULL }; static v_post posts_wline[] = { bwarn_ge1, herr_eq0, NULL }; static v_post posts_sh[] = { herr_ge1, bwarn_ge1, post_sh, NULL }; static v_post posts_bl[] = { herr_eq0, bwarn_ge1, post_bl, NULL }; static v_post posts_it[] = { post_it, NULL }; static v_post posts_in[] = { ewarn_eq1, NULL }; static v_post posts_ss[] = { herr_ge1, NULL }; static v_post posts_pf[] = { eerr_eq1, NULL }; static v_post posts_lb[] = { eerr_eq1, NULL }; static v_post posts_st[] = { eerr_eq1, post_st, NULL }; static v_post posts_pp[] = { ewarn_eq0, NULL }; static v_post posts_ex[] = { eerr_eq0, post_args, NULL }; static v_post posts_rv[] = { eerr_eq0, post_args, NULL }; static v_post posts_an[] = { post_an, NULL }; static v_post posts_at[] = { post_at, NULL }; static v_post posts_xr[] = { eerr_ge1, eerr_le2, NULL }; static v_post posts_nm[] = { post_nm, NULL }; static v_post posts_bf[] = { hwarn_le1, post_bf, NULL }; static v_post posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL }; const struct valids mdoc_valids[MDOC_MAX] = { { NULL, NULL }, /* \" */ { pres_dd, posts_text }, /* Dd */ { pres_dt, NULL }, /* Dt */ { pres_os, NULL }, /* Os */ { pres_sh, posts_sh }, /* Sh */ { pres_ss, posts_ss }, /* Ss */ { NULL, posts_pp }, /* Pp */ { pres_d1, posts_wline }, /* D1 */ { pres_d1, posts_wline }, /* Dl */ { pres_bd, posts_bd }, /* Bd */ { NULL, NULL }, /* Ed */ { pres_bl, posts_bl }, /* Bl */ { NULL, NULL }, /* El */ { pres_it, posts_it }, /* It */ { NULL, posts_text }, /* Ad */ { pres_an, posts_an }, /* An */ { NULL, NULL }, /* Ar */ { pres_cd, posts_text }, /* Cd */ { NULL, NULL }, /* Cm */ { NULL, NULL }, /* Dv */ { pres_er, posts_text }, /* Er */ { NULL, NULL }, /* Ev */ { pres_ex, posts_ex }, /* Ex */ { NULL, NULL }, /* Fa */ { pres_fd, posts_wtext }, /* Fd */ { NULL, NULL }, /* Fl */ { NULL, posts_text }, /* Fn */ { NULL, posts_wtext }, /* Ft */ { NULL, posts_text }, /* Ic */ { NULL, posts_in }, /* In */ { NULL, NULL }, /* Li */ { NULL, posts_wtext }, /* Nd */ { NULL, posts_nm }, /* Nm */ { NULL, posts_wline }, /* Op */ { NULL, NULL }, /* Ot */ { NULL, NULL }, /* Pa */ { pres_rv, posts_rv }, /* Rv */ { NULL, posts_st }, /* St */ { NULL, NULL }, /* Va */ { NULL, posts_text }, /* Vt */ { NULL, posts_xr }, /* Xr */ { NULL, posts_text }, /* %A */ { NULL, posts_text }, /* %B */ { NULL, posts_text }, /* %D */ { NULL, posts_text }, /* %I */ { NULL, posts_text }, /* %J */ { NULL, posts_text }, /* %N */ { NULL, posts_text }, /* %O */ { NULL, posts_text }, /* %P */ { NULL, posts_text }, /* %R */ { NULL, posts_text }, /* %T */ { NULL, posts_text }, /* %V */ { NULL, NULL }, /* Ac */ { NULL, NULL }, /* Ao */ { NULL, posts_wline }, /* Aq */ { NULL, posts_at }, /* At */ { NULL, NULL }, /* Bc */ { NULL, posts_bf }, /* Bf */ { NULL, NULL }, /* Bo */ { NULL, posts_wline }, /* Bq */ { NULL, NULL }, /* Bsx */ { NULL, NULL }, /* Bx */ { NULL, posts_bool }, /* Db */ { NULL, NULL }, /* Dc */ { NULL, NULL }, /* Do */ { NULL, posts_wline }, /* Dq */ { NULL, NULL }, /* Ec */ { NULL, NULL }, /* Ef */ { NULL, NULL }, /* Em */ { NULL, NULL }, /* Eo */ { NULL, NULL }, /* Fx */ { NULL, posts_text }, /* Ms */ { NULL, posts_notext }, /* No */ { NULL, posts_notext }, /* Ns */ { NULL, NULL }, /* Nx */ { NULL, NULL }, /* Ox */ { NULL, NULL }, /* Pc */ { NULL, posts_pf }, /* Pf */ { NULL, NULL }, /* Po */ { NULL, posts_wline }, /* Pq */ { NULL, NULL }, /* Qc */ { NULL, posts_wline }, /* Ql */ { NULL, NULL }, /* Qo */ { NULL, posts_wline }, /* Qq */ { NULL, NULL }, /* Re */ { NULL, posts_wline }, /* Rs */ { NULL, NULL }, /* Sc */ { NULL, NULL }, /* So */ { NULL, posts_wline }, /* Sq */ { NULL, posts_bool }, /* Sm */ { NULL, posts_text }, /* Sx */ { NULL, posts_text }, /* Sy */ { NULL, posts_text }, /* Tn */ { NULL, NULL }, /* Ux */ { NULL, NULL }, /* Xc */ { NULL, NULL }, /* Xo */ { NULL, posts_fo }, /* Fo */ { NULL, NULL }, /* Fc */ { NULL, NULL }, /* Oo */ { NULL, NULL }, /* Oc */ { NULL, posts_wline }, /* Bk */ { NULL, NULL }, /* Ek */ { NULL, posts_notext }, /* Bt */ { NULL, NULL }, /* Hf */ { NULL, NULL }, /* Fr */ { NULL, posts_notext }, /* Ud */ { pres_lb, posts_lb }, /* Lb */ { NULL, NULL }, /* Ap */ { NULL, posts_pp }, /* Lp */ { NULL, posts_text }, /* Lk */ { NULL, posts_text }, /* Mt */ { NULL, posts_wline }, /* Brq */ { NULL, NULL }, /* Bro */ { NULL, NULL }, /* Brc */ { NULL, posts_text }, /* %C */ { NULL, NULL }, /* Es */ { NULL, NULL }, /* En */ { NULL, NULL }, /* Dx */ { NULL, posts_text }, /* %Q */ }; int mdoc_valid_pre(struct mdoc *mdoc, const struct mdoc_node *n) { v_pre *p; int line, pos; const char *tp; if (MDOC_TEXT == n->type) { tp = n->string; line = n->line; pos = n->pos; return(check_text(mdoc, line, pos, tp)); } if ( ! check_args(mdoc, n)) return(0); if (NULL == mdoc_valids[n->tok].pre) return(1); for (p = mdoc_valids[n->tok].pre; *p; p++) if ( ! (*p)(mdoc, n)) return(0); return(1); } int mdoc_valid_post(struct mdoc *mdoc) { v_post *p; /* * This check occurs after the macro's children have been filled * in: postfix validation. Since this happens when we're * rewinding the scope tree, it's possible to have multiple * invocations (as by design, for now), we set bit MDOC_VALID to * indicate that we've validated. */ if (MDOC_VALID & mdoc->last->flags) return(1); mdoc->last->flags |= MDOC_VALID; if (MDOC_TEXT == mdoc->last->type) return(1); if (MDOC_ROOT == mdoc->last->type) return(post_root(mdoc)); if (NULL == mdoc_valids[mdoc->last->tok].post) return(1); for (p = mdoc_valids[mdoc->last->tok].post; *p; p++) if ( ! (*p)(mdoc)) return(0); return(1); } static int perr(struct mdoc *m, int line, int pos, enum merr type) { char *p; p = NULL; switch (type) { case (EESCAPE): p = "invalid escape sequence"; break; case (EPRINT): p = "invalid character"; break; case (ENESTDISP): p = "displays may not be nested"; break; case (EBOOL): p = "expected boolean value"; break; case (EARGREP): p = "argument repeated"; break; case (EMULTIDISP): p = "multiple display types specified"; break; case (EMULTILIST): p = "multiple list types specified"; break; case (ELISTTYPE): p = "missing list type"; break; case (EDISPTYPE): p = "missing display type"; break; case (ELINE): p = "expected line arguments"; break; case (ENOPROLOGUE): p = "document has no prologue"; break; case (ENODATA): p = "document has no data"; break; case (EATT): p = "expected valid AT&T symbol"; break; case (ENAME): p = "default name not yet set"; break; } assert(p); return(mdoc_perr(m, line, pos, p)); } static int pwarn(struct mdoc *m, int line, int pos, enum mwarn type) { char *p; enum mdoc_warn c; c = WARN_SYNTAX; p = NULL; switch (type) { case (WBADMSEC): p = "inappropriate manual section"; c = WARN_COMPAT; break; case (WBADSEC): p = "inappropriate document section"; c = WARN_COMPAT; break; case (WARGVAL): p = "argument value suggested"; c = WARN_COMPAT; break; case (WPROLREP): p = "prologue macros repeated"; c = WARN_COMPAT; break; case (WPROLOOO): p = "prologue macros out-of-order"; c = WARN_COMPAT; break; case (WESCAPE): p = "invalid escape sequence"; break; case (WNOLINE): p = "suggested no line arguments"; break; case (WLINE): p = "suggested line arguments"; break; case (WMULTILINE): p = "suggested multi-line arguments"; break; case (WNOMULTILINE): p = "suggested no multi-line arguments"; break; case (WWRONGMSEC): p = "document section in wrong manual section"; c = WARN_COMPAT; break; case (WSECOOO): p = "document section out of conventional order"; break; case (WSECREP): p = "document section repeated"; break; case (WBADSTAND): p = "unknown standard"; break; case (WNAMESECINC): p = "NAME section contents incomplete/badly-ordered"; break; } assert(p); return(mdoc_pwarn(m, line, pos, c, p)); } static inline int warn_count(struct mdoc *m, const char *k, int want, const char *v, int has) { return(mdoc_warn(m, WARN_SYNTAX, "suggests %s %s %d (has %d)", v, k, want, has)); } static inline int err_count(struct mdoc *m, const char *k, int want, const char *v, int has) { return(mdoc_err(m, "requires %s %s %d (has %d)", v, k, want, has)); } static inline int count_child(struct mdoc *mdoc) { int i; struct mdoc_node *n; for (i = 0, n = mdoc->last->child; n; n = n->next, i++) /* Do nothing */ ; return(i); } /* * Build these up with macros because they're basically the same check * for different inequalities. Yes, this could be done with functions, * but this is reasonable for now. */ #define CHECK_CHILD_DEFN(lvl, name, ineq) \ static int \ lvl##_child_##name(struct mdoc *mdoc, const char *p, int sz) \ { \ int i; \ if ((i = count_child(mdoc)) ineq sz) \ return(1); \ return(lvl##_count(mdoc, #ineq, sz, p, i)); \ } #define CHECK_BODY_DEFN(name, lvl, func, num) \ static int \ b##lvl##_##name(POST_ARGS) \ { \ if (MDOC_BODY != mdoc->last->type) \ return(1); \ return(func(mdoc, "multi-line arguments", (num))); \ } #define CHECK_ELEM_DEFN(name, lvl, func, num) \ static int \ e##lvl##_##name(POST_ARGS) \ { \ assert(MDOC_ELEM == mdoc->last->type); \ return(func(mdoc, "line arguments", (num))); \ } #define CHECK_HEAD_DEFN(name, lvl, func, num) \ static int \ h##lvl##_##name(POST_ARGS) \ { \ if (MDOC_HEAD != mdoc->last->type) \ return(1); \ return(func(mdoc, "line arguments", (num))); \ } CHECK_CHILD_DEFN(warn, gt, >) /* warn_child_gt() */ CHECK_CHILD_DEFN(err, gt, >) /* err_child_gt() */ CHECK_CHILD_DEFN(warn, eq, ==) /* warn_child_eq() */ CHECK_CHILD_DEFN(err, eq, ==) /* err_child_eq() */ CHECK_CHILD_DEFN(err, lt, <) /* err_child_lt() */ CHECK_CHILD_DEFN(warn, lt, <) /* warn_child_lt() */ CHECK_BODY_DEFN(ge1, warn, warn_child_gt, 0) /* bwarn_ge1() */ CHECK_ELEM_DEFN(eq1, warn, warn_child_eq, 1) /* ewarn_eq1() */ CHECK_ELEM_DEFN(eq0, warn, warn_child_eq, 0) /* ewarn_eq0() */ CHECK_ELEM_DEFN(ge1, warn, warn_child_gt, 0) /* ewarn_gt1() */ CHECK_ELEM_DEFN(eq1, err, err_child_eq, 1) /* eerr_eq1() */ CHECK_ELEM_DEFN(le2, err, err_child_lt, 3) /* eerr_le2() */ CHECK_ELEM_DEFN(eq0, err, err_child_eq, 0) /* eerr_eq0() */ CHECK_ELEM_DEFN(ge1, err, err_child_gt, 0) /* eerr_ge1() */ CHECK_HEAD_DEFN(eq0, err, err_child_eq, 0) /* herr_eq0() */ CHECK_HEAD_DEFN(le1, warn, warn_child_lt, 2) /* hwarn_le1() */ CHECK_HEAD_DEFN(ge1, err, err_child_gt, 0) /* herr_ge1() */ CHECK_HEAD_DEFN(eq1, warn, warn_child_eq, 1) /* hwarn_eq1() */ static int check_stdarg(PRE_ARGS) { if (n->args && 1 == n->args->argc) if (MDOC_Std == n->args->argv[0].arg) return(1); return(nwarn(mdoc, n, WARGVAL)); } static int check_sec(PRE_ARGS, ...) { enum mdoc_sec sec; va_list ap; va_start(ap, n); for (;;) { /* LINTED */ sec = (enum mdoc_sec)va_arg(ap, int); if (SEC_CUSTOM == sec) break; if (sec != mdoc->lastsec) continue; va_end(ap); return(1); } va_end(ap); return(nwarn(mdoc, n, WBADSEC)); } static int check_msec(PRE_ARGS, ...) { va_list ap; int msec; va_start(ap, n); for (;;) { /* LINTED */ if (0 == (msec = va_arg(ap, int))) break; if (msec != mdoc->meta.msec) continue; va_end(ap); return(1); } va_end(ap); return(nwarn(mdoc, n, WBADMSEC)); } static int check_args(struct mdoc *m, const struct mdoc_node *n) { int i; if (NULL == n->args) return(1); assert(n->args->argc); for (i = 0; i < (int)n->args->argc; i++) if ( ! check_argv(m, n, &n->args->argv[i])) return(0); return(1); } static int check_argv(struct mdoc *m, const struct mdoc_node *n, const struct mdoc_argv *v) { int i; for (i = 0; i < (int)v->sz; i++) if ( ! check_text(m, v->line, v->pos, v->value[i])) return(0); if (MDOC_Std == v->arg) { /* `Nm' name must be set. */ if (v->sz || m->meta.name) return(1); return(nerr(m, n, ENAME)); } return(1); } static int check_text(struct mdoc *mdoc, int line, int pos, const char *p) { size_t c; /* FIXME: indicate deprecated escapes \*(xx and \*x. */ for ( ; *p; p++) { if ('\t' == *p) { if ( ! (MDOC_LITERAL & mdoc->flags)) return(perr(mdoc, line, pos, EPRINT)); } else if ( ! isprint((u_char)*p)) return(perr(mdoc, line, pos, EPRINT)); if ('\\' != *p) continue; c = mdoc_isescape(p); if (c) { p += (int)c - 1; continue; } if ( ! (MDOC_IGN_ESCAPE & mdoc->pflags)) return(perr(mdoc, line, pos, EESCAPE)); if ( ! pwarn(mdoc, line, pos, WESCAPE)) return(0); } return(1); } static int check_parent(PRE_ARGS, int tok, enum mdoc_type t) { assert(n->parent); if ((MDOC_ROOT == t || tok == n->parent->tok) && (t == n->parent->type)) return(1); return(mdoc_nerr(mdoc, n, "require parent %s", MDOC_ROOT == t ? "" : mdoc_macronames[tok])); } static int pre_display(PRE_ARGS) { struct mdoc_node *node; /* Display elements (`Bd', `D1'...) cannot be nested. */ if (MDOC_BLOCK != n->type) return(1); /* LINTED */ for (node = mdoc->last->parent; node; node = node->parent) if (MDOC_BLOCK == node->type) if (MDOC_Bd == node->tok) break; if (NULL == node) return(1); return(nerr(mdoc, n, ENESTDISP)); } static int pre_bl(PRE_ARGS) { int i, type, width, offset; if (MDOC_BLOCK != n->type) return(1); if (NULL == n->args) return(nerr(mdoc, n, ELISTTYPE)); /* Make sure that only one type of list is specified. */ type = offset = width = -1; /* LINTED */ for (i = 0; i < (int)n->args->argc; i++) switch (n->args->argv[i].arg) { case (MDOC_Bullet): /* FALLTHROUGH */ case (MDOC_Dash): /* FALLTHROUGH */ case (MDOC_Enum): /* FALLTHROUGH */ case (MDOC_Hyphen): /* FALLTHROUGH */ case (MDOC_Item): /* FALLTHROUGH */ case (MDOC_Tag): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Hang): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Column): if (-1 == type) { type = n->args->argv[i].arg; break; } return(nerr(mdoc, n, EMULTILIST)); case (MDOC_Width): if (-1 == width) { width = n->args->argv[i].arg; break; } return(nerr(mdoc, n, EARGREP)); case (MDOC_Offset): if (-1 == offset) { offset = n->args->argv[i].arg; break; } return(nerr(mdoc, n, EARGREP)); default: break; } if (-1 == type) return(nerr(mdoc, n, ELISTTYPE)); switch (type) { case (MDOC_Column): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Item): if (-1 == width) break; return(mdoc_nwarn(mdoc, n, WARN_SYNTAX, "superfluous %s argument", mdoc_argnames[MDOC_Width])); case (MDOC_Tag): if (-1 != width) break; return(mdoc_nwarn(mdoc, n, WARN_SYNTAX, "suggest %s argument", mdoc_argnames[MDOC_Width])); default: break; } return(1); } static int pre_bd(PRE_ARGS) { int i, type, err; if (MDOC_BLOCK != n->type) return(1); if (NULL == n->args) return(nerr(mdoc, n, EDISPTYPE)); /* Make sure that only one type of display is specified. */ /* LINTED */ for (i = 0, err = type = 0; ! err && i < (int)n->args->argc; i++) switch (n->args->argv[i].arg) { case (MDOC_Ragged): /* FALLTHROUGH */ case (MDOC_Unfilled): /* FALLTHROUGH */ case (MDOC_Filled): /* FALLTHROUGH */ case (MDOC_Literal): /* FALLTHROUGH */ case (MDOC_File): if (0 == type++) break; return(nerr(mdoc, n, EMULTIDISP)); default: break; } if (type) return(1); return(nerr(mdoc, n, EDISPTYPE)); } static int pre_ss(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY)); } static int pre_sh(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, -1, MDOC_ROOT)); } static int pre_it(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY)); } static int pre_an(PRE_ARGS) { if (NULL == n->args || 1 == n->args->argc) return(1); return(mdoc_nerr(mdoc, n, "only one argument allowed")); } static int pre_lb(PRE_ARGS) { return(check_sec(mdoc, n, SEC_LIBRARY, SEC_CUSTOM)); } static int pre_rv(PRE_ARGS) { if ( ! check_msec(mdoc, n, 2, 3, 0)) return(0); return(check_stdarg(mdoc, n)); } static int pre_ex(PRE_ARGS) { if ( ! check_msec(mdoc, n, 1, 6, 8, 0)) return(0); return(check_stdarg(mdoc, n)); } static int pre_er(PRE_ARGS) { return(check_msec(mdoc, n, 2, 0)); } static int pre_cd(PRE_ARGS) { return(check_msec(mdoc, n, 4, 0)); } static int pre_prologue(PRE_ARGS) { return(check_sec(mdoc, n, SEC_PROLOGUE, SEC_CUSTOM)); } static int pre_dt(PRE_ARGS) { if (0 == mdoc->meta.date || mdoc->meta.os) if ( ! nwarn(mdoc, n, WPROLOOO)) return(0); if (mdoc->meta.title) if ( ! nwarn(mdoc, n, WPROLREP)) return(0); return(1); } static int pre_os(PRE_ARGS) { if (NULL == mdoc->meta.title || 0 == mdoc->meta.date) if ( ! nwarn(mdoc, n, WPROLOOO)) return(0); if (mdoc->meta.os) if ( ! nwarn(mdoc, n, WPROLREP)) return(0); return(1); } static int pre_dd(PRE_ARGS) { if (mdoc->meta.title || mdoc->meta.os) if ( ! nwarn(mdoc, n, WPROLOOO)) return(0); if (mdoc->meta.date) if ( ! nwarn(mdoc, n, WPROLREP)) return(0); return(1); } static int post_bf(POST_ARGS) { char *p; struct mdoc_node *head; if (MDOC_BLOCK != mdoc->last->type) return(1); head = mdoc->last->head; if (NULL == mdoc->last->args) { if (NULL == head->child || MDOC_TEXT != head->child->type) return(mdoc_err(mdoc, "text argument expected")); p = head->child->string; if (xstrcmp(p, "Em")) return(1); else if (xstrcmp(p, "Li")) return(1); else if (xstrcmp(p, "Sm")) return(1); return(mdoc_nerr(mdoc, head->child, "invalid font")); } if (head->child) return(mdoc_err(mdoc, "one argument expected")); return(1); } static int post_nm(POST_ARGS) { if (mdoc->last->child) return(1); if (mdoc->meta.name) return(1); return(merr(mdoc, ENAME)); } static int post_at(POST_ARGS) { if (NULL == mdoc->last->child) return(1); if (MDOC_TEXT != mdoc->last->child->type) return(merr(mdoc, EATT)); if (mdoc_a2att(mdoc->last->child->string)) return(1); return(merr(mdoc, EATT)); } static int post_an(POST_ARGS) { if (mdoc->last->args) { if (NULL == mdoc->last->child) return(1); return(merr(mdoc, ELINE)); } if (mdoc->last->child) return(1); return(merr(mdoc, ELINE)); } static int post_args(POST_ARGS) { if (mdoc->last->args) return(1); return(merr(mdoc, ELINE)); } static int post_it(POST_ARGS) { int type, i, cols; struct mdoc_node *n, *c; if (MDOC_BLOCK != mdoc->last->type) return(1); n = mdoc->last->parent->parent; if (NULL == n->args) return(merr(mdoc, ELISTTYPE)); /* Some types require block-head, some not. */ /* LINTED */ for (cols = type = -1, i = 0; -1 == type && i < (int)n->args->argc; i++) switch (n->args->argv[i].arg) { case (MDOC_Tag): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Hang): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Bullet): /* FALLTHROUGH */ case (MDOC_Dash): /* FALLTHROUGH */ case (MDOC_Enum): /* FALLTHROUGH */ case (MDOC_Hyphen): /* FALLTHROUGH */ case (MDOC_Item): type = n->args->argv[i].arg; break; case (MDOC_Column): type = n->args->argv[i].arg; cols = (int)n->args->argv[i].sz; break; default: break; } if (-1 == type) return(merr(mdoc, ELISTTYPE)); switch (type) { case (MDOC_Tag): if (NULL == mdoc->last->head->child) if ( ! mwarn(mdoc, WLINE)) return(0); break; case (MDOC_Hang): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Diag): if (NULL == mdoc->last->head->child) if ( ! mwarn(mdoc, WLINE)) return(0); if (NULL == mdoc->last->body->child) if ( ! mwarn(mdoc, WMULTILINE)) return(0); break; case (MDOC_Bullet): /* FALLTHROUGH */ case (MDOC_Dash): /* FALLTHROUGH */ case (MDOC_Enum): /* FALLTHROUGH */ case (MDOC_Hyphen): /* FALLTHROUGH */ case (MDOC_Item): if (mdoc->last->head->child) if ( ! mwarn(mdoc, WNOLINE)) return(0); if (NULL == mdoc->last->body->child) if ( ! mwarn(mdoc, WMULTILINE)) return(0); break; case (MDOC_Column): if (NULL == mdoc->last->head->child) if ( ! mwarn(mdoc, WLINE)) return(0); if (mdoc->last->body->child) if ( ! mwarn(mdoc, WNOMULTILINE)) return(0); c = mdoc->last->child; for (i = 0; c && MDOC_HEAD == c->type; c = c->next) i++; if (i == cols) break; return(mdoc_err(mdoc, "column mismatch (have " "%d, want %d)", i, cols)); default: break; } return(1); } static int post_bl(POST_ARGS) { struct mdoc_node *n; if (MDOC_BODY != mdoc->last->type) return(1); if (NULL == mdoc->last->child) return(1); /* LINTED */ for (n = mdoc->last->child; n; n = n->next) { if (MDOC_BLOCK == n->type) if (MDOC_It == n->tok) continue; return(mdoc_nerr(mdoc, n, "bad child of parent %s", mdoc_macronames[mdoc->last->tok])); } return(1); } static int ebool(struct mdoc *mdoc) { struct mdoc_node *n; /* LINTED */ for (n = mdoc->last->child; n; n = n->next) { if (MDOC_TEXT != n->type) break; if (xstrcmp(n->string, "on")) continue; if (xstrcmp(n->string, "off")) continue; break; } if (NULL == n) return(1); return(nerr(mdoc, n, EBOOL)); } static int post_root(POST_ARGS) { if (NULL == mdoc->first->child) return(merr(mdoc, ENODATA)); if (SEC_PROLOGUE == mdoc->lastnamed) return(merr(mdoc, ENOPROLOGUE)); if (MDOC_BLOCK != mdoc->first->child->type) return(merr(mdoc, ENODATA)); if (MDOC_Sh != mdoc->first->child->tok) return(merr(mdoc, ENODATA)); return(1); } static int post_st(POST_ARGS) { if (mdoc_a2st(mdoc->last->child->string)) return(1); return(mwarn(mdoc, WBADSTAND)); } static int post_sh(POST_ARGS) { if (MDOC_HEAD == mdoc->last->type) return(post_sh_head(mdoc)); if (MDOC_BODY == mdoc->last->type) return(post_sh_body(mdoc)); return(1); } static int post_sh_body(POST_ARGS) { struct mdoc_node *n; if (SEC_NAME != mdoc->lastnamed) return(1); /* * Warn if the NAME section doesn't contain the `Nm' and `Nd' * macros (can have multiple `Nm' and one `Nd'). Note that the * children of the BODY declaration can also be "text". */ if (NULL == (n = mdoc->last->child)) return(mwarn(mdoc, WNAMESECINC)); for ( ; n && n->next; n = n->next) { if (MDOC_ELEM == n->type && MDOC_Nm == n->tok) continue; if (MDOC_TEXT == n->type) continue; if ( ! mwarn(mdoc, WNAMESECINC)) return(0); } if (MDOC_ELEM == n->type && MDOC_Nd == n->tok) return(1); return(mwarn(mdoc, WNAMESECINC)); } static int post_sh_head(POST_ARGS) { char buf[64]; enum mdoc_sec sec; /* * Process a new section. Sections are either "named" or * "custom"; custom sections are user-defined, while named ones * usually follow a conventional order and may only appear in * certain manual sections. */ assert(MDOC_Sh == mdoc->last->tok); (void)xstrlcpys(buf, mdoc->last->child, sizeof(buf)); sec = mdoc_atosec(buf); /* The NAME section should always be first. */ if (SEC_BODY == mdoc->lastnamed && SEC_NAME != sec) return(mwarn(mdoc, WSECOOO)); if (SEC_CUSTOM == sec) return(1); /* Check for repeated or out-of-order sections. */ if (sec == mdoc->lastnamed) return(mwarn(mdoc, WSECREP)); if (sec < mdoc->lastnamed) return(mwarn(mdoc, WSECOOO)); /* Check particular section/manual section conventions. */ switch (sec) { case (SEC_LIBRARY): switch (mdoc->meta.msec) { case (2): /* FALLTHROUGH */ case (3): break; default: return(mwarn(mdoc, WWRONGMSEC)); } break; default: break; } return(1); } static int pre_fd(PRE_ARGS) { return(check_sec(mdoc, n, SEC_SYNOPSIS, SEC_CUSTOM)); }